Notes on geomagnetic observatory and survey practice
Wienert, K. A.
Notes on geomagnetic observatory and survey practice K. A. Wienert - Paris UNESCO 1970 - 217p. biblio
9231008161
Geomagnetic Instruments-calibrMagnetic ObservatoryMagnetic Survey
550.380.2+550.389 / WIE
Notes on geomagnetic observatory and survey practice K. A. Wienert - Paris UNESCO 1970 - 217p. biblio
9231008161
Geomagnetic Instruments-calibrMagnetic ObservatoryMagnetic Survey
550.380.2+550.389 / WIE